Patent US1811987A successfully refreshed from Google Patents.
US1811987A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring mounting for presses and the like
Assignee: Individual
•
Filing: 1928-03-14
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Granted: 1931-06-30
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Expires: 1948-03-14
Abstract
No abstract record available.
Inventors
- 👤 George F Wales
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:09
CPC Classifications
B; B21; B21D; B21D45/00; B21D45/003; B21D45/006; Y; Y10; Y10S; Y10S411/00; Y10S411/955; Y10S411/965; Y10T; Y10T83/00; Y10T83/202; Y10T83/2092; Y10T83/2096; Y10T83/2122; Y10T83/2133; Y10T83/2135; Y10T83/215; Y10T83/2155; Y10T83/2159
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1934-06-29 | 1934-12-29 | 1935-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-06-29 | 1938-12-29 | 1939-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-06-29 | 1942-12-29 | 1943-06-30 | $7700.00 | Window Closed / Lapsed |